material also will prevent corrosion. MoparGasket Sealant is available in a 13 oz. aerosol can or 4 oz./16 oz. can
w/applicator.
FORM-IN-PLACE GASKET AND SEALER APPLICATION
MoparGasket Maker material should be applied sparingly 1 mm (0.040 in.) diameter or less of sealant to one
gasket surface. Be certain the material surrounds each mounting hole. Excess material can easily be wiped off.
Components should be torqued in place within 15 minutes. The use of a locating dowel is recommended during
assembly to prevent smearing material off the location.
Mopar
Engine RTV GEN II or ATF RTV gasket material should be applied in a continuous bead approximately 3
mm (0.120 in.) in diameter. All mounting holes must be circled. For corner sealing,a3.17mmor6.35mm(1/8in.
or 1/4 in.) drop is placed in the center of the gasket contact area. Uncured sealant may be removed with a shop
towel. Components should be torqued in place while the sealant is still wettothetouch(within10minutes).The
usage of a locating dowel is recommended during assembly to prevent smearing material off the location.
Mopar
Gasket Sealant in an aerosol can should be applied using a thin, even coat sprayed completely over both
surfaces to be joined, and both sides of a gasket. Then proceed with assembly. Material in a can w/applicator can
be brushed on evenly over the sealing surfaces. Material in an aerosol can shouldbeusedonengineswithmulti-
layer steel gaskets.
ENGINE GASKET SURFACE PREPARATION
To ensure engine gasket sealing, proper surface prep-
aration must be performed, especially with the use of
aluminum engine components and multi-layer steel
cylinder head gaskets.
Neveruse the following to clean gasket surfaces:
Metal scraper
Abrasive pad or paper to clean cylinder block
and head
High speed power tool with an abrasive pad or a
wire brush (1)
NOTE: Multi-Layer Steel (MLS) head gaskets
require a scratch free sealing surface.
Only use the following for cleaning gasket surfaces:
Solvent or a commercially available gasket
remover
Plastic or wood scraper (3)
Drill motor with 3M Roloc™ Bristle Disc (white or yellow) (2)
CAUTION: Excessive pressure or high RPM (beyond the recommended speed), can damage the sealing sur-
faces. The mild (white, 120 grit) bristle disc is recommended. If necessary, the medium (yellow, 80 grit) bris-
tle disc may be used on cast iron surfaces with care.
HYDROSTATIC LOCKED ENGINE
When an engine is suspected to be hydrostatically locked, regardless of what caused the problem, the following
steps should be used.
CAUTION: DO NOT use starter motor to rotate the engine, severe damage may occur.
1. Inspect air cleaner, induction system and intake manifold to ensure system is dry and clear of foreign material.
2. Remove negative battery cable.
3. Place a shop towel around the spark plugs when removing them from the engine. This will catch any fluid that
may possibly be in the cylinder under pressure.
4. With all spark plugs removed, rotate engine crankshaft using a breaker bar and socket.
MANIFOLD-EXHAUST
REMOVAL
NOTE: Care must be taken to protect the cylinder
head covers powder coating from scrapes and
abrasions. This procedure covers either the left or
right exhaust manifold.
1. Disconnect negative battery cable.
NOTE: When servicing the right exhaust manifold
it is necessary to remove the upper oil dip stick
tube fastener and position the tube aside.
2. Raise vehicle on hoist.
3. Loosen and remove the fasteners from the exhaust
pipe to exhaust manifold.
4. Separate exhaust pipe from the exhaust manifold.
5. Lower the vehicle.
6. Disconnect the spark plug wires from the spark
plugs and set aside.
7. Remove manifold heat shield from exhaust mani-
fold ,.
NOTE: Note the location of exhaust manifold studs
and bolts for proper installation.
8. Remove studs and bolts attaching manifold to cyl-
inder head and remove manifold ,.
HEAD(S)-CYLINDER
REMOVAL - CYLINDER HEAD(S)
NOTE: Care must be taken to protect the intake
manifold and cylinder head covers powder coating
from scrapes and abrasions. This procedure cov-
ers either the left or right cylinder head.
The aluminum alloy cylinder head shown in is held in
place by 12,
1⁄2inch bolts (5) and 8,1⁄4inch bolts (4).
1. Release the fuel pressure (Refer to 14 - FUEL
SYSTEM/FUEL DELIVERY - STANDARD PROCE-
DURE).
2. Disconnect negative battery cable.
3. Disconnect the throttle body air inlet duct, IAT sen-
sor, CCV hose and remove the air cleaner cover
(Refer to 9 - ENGINE/AIR INTAKE SYSTEM/AIR
CLEANER HOUSING - REMOVAL).
4. Drain the cooling system (Refer to 7 - COOLING/
ENGINE - STANDARD PROCEDURE - DRAINING
COOLING SYSTEM).
5. Raise and support the vehicle.
6. Disconnect the front exhaust pipe to exhaust man-
ifold connection.
7. Lower the vehicle.
8. Remove intake manifold (Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANIFOLD-REMOVAL).
9. Disconnect the spark plug wires by pulling on the boot straight out in line with the spark plug. Dislodge spark
plug retainers from the cylinder head cover studs and position the spark plug wires aside.
10. Disconnect the oil level indicator tube and set aside.
11. Disconnect CCV hoses from cylinder head covers.
12. Remove the cylinder head covers (Refer to 9 - ENGINE/CYLINDER HEAD/ROCKER ARMS - REMOVAL).
13. Remove exhaust manifold heat shields.
14. Remove exhaust manifold(s) and gasket(s) (Refer to 9 - ENGINE/MANIFOLDS/EXHAUST MANIFOLD -
REMOVAL).
NOTE: If rocker arms and push rods are to be reused, identify each componentto ensure installation in
original locations.
15. Remove the rocker arm and pedestal assemblies (Refer to 9 - ENGINE/CYLINDER HEAD/ROCKER ARMS -
REMOVAL).
16. Remove push rods.
17. Remove the 12 head bolts and 8 cylinder head tappet gallery bolts from cylinder head(s).
18. Remove cylinder head(s) and gasket(s).
11. The intake and exhaust valve stem seals should be pushed firmly and squarely over the valve guide using the
valve stem as guide. Push seal against top of guide. When installing the valve retainer locks, compress the
springonly enoughto install the locks.
CAUTION: Do not pinch seal between retainer and top of valve guide.
12. Follow the same procedure on the remaining 9 cylinders.Make sure piston is at TDC on the cylinder the
valve spring is being removed.
13. Remove spark plug adapter tool.
14. Install rocker arm and pedestal assemblies. Ensure push rods are seated properly under each rocker arm.
Tightenrockerarmboltsto35Nꞏm(26ft.lbs.).
15. Install cylinder head covers (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDERHEADCOVER(S)-INSTAL-
LATION).
16. Install spark plugs and connect secondary ignition wires.
17. Connect negative battery cable.
REMOVAL
NOTE: Before replacing parts, inspect all related
valvetrain components for damage to prevent
engine misfire.
1. With the cylinder head removed, compress valve
springs using a valve spring compressor (1).
2. Remove valve retaining locks.
3. Slowly release valve spring compressor.
4. Remove valve spring retainer and valve spring.
5. Before removing the valves,remove any burrs
from valve stem lock grooves to prevent dam-
age to the valve guides.Identify the valves to
ensure installation in original location.
6. Remove valve seal.
7. Repeat procedure for remaining valves.
CAMSHAFT
REMOVAL
1. Perform the fuel pressure relief procedure (Refer to
14 - FUEL SYSTEM/FUEL DELIVERY - STAN-
DARD PROCEDURE).
2. Disconnect the negative battery cable.
3. Raise and support the vehicle.
4. Remove the front engine shield.
5. Drain the cooling system
6. Drain the power steering fluid.
7. Remove the oil pan (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - REMOVAL).
8. Lower the vehicle.
9. Remove the radiator and radiator fan assembly
(Refer to 7 - COOLING/ENGINE/RADIATOR -
REMOVAL).
10. Remove intake manifold (Refer to 9 - ENGINE/
MANIFOLDS/INTAKE MANIFOLD - REMOVAL).
11. Remove cylinder head covers (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - REMOVAL).
12. Remove timing chain cover (Refer to 9 - ENGINE/
VALVE TIMING/TIMING CHAIN COVER - REMOVAL).
13. Remove rocker arm assemblies.
NOTE: Identify each push rod to be replaced in its original location.
14. Remove push rods.
15. Remove cylinder heads (Refer to 9 - ENGINE/CYLINDER HEAD - REMOVAL).
16. Remove hydraulic tappets (Refer to 9 - ENGINE/ENGINE BLOCK/HYDRAULICTAPPETS - REMOVAL).
17. Remove timing chain and camshaft sprocket (Refer to 9 - ENGINE/VALVE TIMING/TIMING CHAIN AND
SPROCKETS - REMOVAL).
18. Remove camshaft thrust plate (2).
19. Slowly remove camshaft (1). Use care not to damage camshaft bearing surfaces with the cam lobes.
RAIL - FUEL
DESCRIPTION
The fuel injector rail is used to mount the fuel injectors to the engine.
OPERATION
High pressure from the fuel pump is routed to the fuel rail. The fuel rail then supplies the necessary fuel to each
individual fuel injector.
A quick-connect fitting with a safety latch clip is used to attach the fuel linetothefuelrail.
The fuel rail is not repairable.
CAUTION: The left and right sections of the fuel rail are connected with either a flexible connecting hose, or
joints. Do not attempt to separate the rail halves at these connecting hoseor joints. Due to the design of
the connecting hose or joint, it does not use any clamps. Never attempt to install a clamping device of any
kind to the hose or joint. When removing the fuel rail assembly for any reason, be careful not to bend or
kink the connecting hose or joint.
REMOVAL
3.7L V-6
WARNING: The fuel system is under constant pressure even with engine off. Before servicing fuel rail, fuel
system pressure must be released.
CAUTION: The left and right fuel rails are replaced as an assembly. Do not attempt to separate rail halves
at connector tubes. Due to design of tubes, it does not use any clamps. Neverattempt to install a clamping
device of any kind to tubes. When removing fuel rail assembly for any reason, be careful not to bend or
kink tubes.
1. Remove fuel tank filler tube cap.
2. Perform Fuel System Pressure Release Procedure.
(Refer to 14 - FUEL SYSTEM/FUEL DELIVERY -
STANDARD PROCEDURE)
3. Remove negative battery cable at battery.
4. Remove air duct at throttle body air box.
5. Remove air box at throttle body.
6. Remove air resonator mounting bracket at front of
throttle body (2 bolts).
7. Disconnect fuel line latch clip and fuel line at fuel
rail. A special tool will be necessary for fuel line
disconnection. (Refer to 14 - FUEL SYSTEM/FUEL
DELIVERY/QUICK CONNECT FITTING - STAN-
DARD PROCEDURE)
8. Remove necessary vacuumlines at throttle body.
9. Disconnect electrical connectors at all 6 fuel injec-
tors. To remove connector refer to. Push red col-
ored slider away from injector (1). While pushing
slider, depress tab (2) and remove connector (3)
from injector. The factory fuel injection wiring har-
ness is numerically tagged (INJ 1, INJ 2, etc.) for
injector position identification. If harness is not
tagged, note wiring location before removal.
10. Disconnect electrical connectors at all throttle body sensors.
11. Remove 6 ignition coils. (Refer to 8 - ELECTRICAL/IGNITION CONTROL/IGNITION COIL - REMOVAL)
12. Remove 4 fuel rail mounting bolts (1).
13. Gently rock and pullleftside of fuel rail until fuel
injectors just start to clear machined holes in cyl-
inder head. Gently rock and pullrightside of rail
until injectors just start to clear cylinder head
holes. Repeat this procedure (left/right) until all
injectors have cleared cylinder head holes.
14. Remove fuel rail (with injectors attached) from
engine.
15. If fuel injectors are to be removed, (Refer to 14 -
FUEL SYSTEM/FUEL INJECTION/FUEL INJEC-
TOR - REMOVAL).
4.7L V-8
WARNING: The fuel system is under constant pressure even with engine off. Before servicing fuel rail, fuel
system pressure must be released.
CAUTION: The left and right fuel rails are replaced as an assembly. Do not attempt to separate rail halves
at connector tubes. Due to design of tubes, it does not use any clamps. Neverattempt to install a clamping
device of any kind to tubes. When removing fuel rail assembly for any reason, be careful not to bend or
kink tubes.
1. Remove fuel tank filler tube cap.
2. Perform Fuel System Pressure Release Procedure.
(Refer to 14 - FUEL SYSTEM/FUEL DELIVERY -
STANDARD PROCEDURE)
3. Remove negative battery cable at battery.
4. Remove air duct at throttle body air box.
5. Remove air box at throttle body.
6. Remove air resonator mounting bracket at front of
throttle body (2 bolts).
7. Disconnect fuel line latch clip and fuel line at fuel
rail. A special tool will be necessary for fuel line
disconnection. (Refer to 14 - FUEL SYSTEM/FUEL
DELIVERY/QUICK CONNECT FITTING - STAN-
DARD PROCEDURE)
8. Remove necessary vacuumlines at throttle body.
9. Disconnect electrical connectors at all 8 fuel injec-
tors. To remove connector refer to. Push red col-
ored slider away from injector (1). While pushing
slider, depress tab (2) and remove connector (3)
from injector. The factory fuel injection wiring har-
ness is numerically tagged (INJ 1, INJ 2, etc.) for
injector position identification. If harness is not
tagged, note wiring location before removal.
1. Remove fuel tank filler tube cap.
2. Perform fuel system pressure release procedure.
(Refer to 14 - FUEL SYSTEM/FUEL DELIVERY -
STANDARD PROCEDURE)
3. Remove negative battery cable at battery.
4. Remove flex tube (air cleaner housing to engine).
5. Remove air resonator box at throttle body.
6. Disconnect electrical connectors at all 8 fuel injec-
tors. Push red colored slider away from injector (1).
While pushing slider, depress tab (2) and remove
connector (3) from injector. The factory fuel injec-
tion wiring harness is numerically tagged (INJ 1,
INJ 2, etc.) for injector position identification. If har-
ness is not tagged, note wiring location before
removal.
7. Disconnect electrical connectors at all throttle body
sensors.
8. Disconnect fuel supply tube quick connect fitting at
the fuel rail, (Refer to14 - FUEL SYSTEM/FUEL
DELIVERY/QUICK CONNECT FITTING - STAN-
DARD PROCEDURE).
9. Remove four fuel rail mounting bolts (1) and hold-
down clamps.
10. Gently rock and pullleftside of fuel rail until fuel
injectors just start to clear machined holes in
intake manifold. Gently rock and pullrightside of
rail until injectors just start to clear intake manifold
head holes. Repeat this procedure (left/right) until
all injectors have cleared machined holes.
11. Remove fuel rail (with injectors attached) from
engine.
12. If fuel injectors are to be removed, (Refer to 14 -
FUEL SYSTEM/FUEL INJECTION/FUEL INJEC-
TOR - REMOVAL).